ixdmaacccodelet.c

有关ARM开发板上的IXP400网络驱动程序的源码以。

/**
 * @file IxDmaAccCodelet.c
 *
 * @author Intel Corporation
 * @date 18 November 2002
 *
 * @brief This file contains the implementation of the Dma Access Codelet.
 *
 * 
 * @par
 * IXP400 SW Release version 2.1
 * 
 * -- Copyright Notice --
 * 
 * @par
 * Copyright (c) 2001-2005, Intel Corporation.
 * All rights reserved.
 * 
 * @par
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the Intel Corporation nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 * 
 * 
 * @par
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * 
 * @par
 * -- End of Copyright Notice --
*/

/*
 * System defined include files.
 */

/*
 * User defined include files.
 */
#include "IxOsal.h"
#include "IxQMgr.h"
#include "IxNpeDl.h"
#include "IxDmaAcc.h"
#include "IxDmaAccCodelet.h"
#include "IxDmaAccCodelet_p.h"

/*
 * Defines
 */
/* Sleep timer is set to 1ms */
#define IX_CLIENT_SLEEP_IN_MS  1

/* XScale tick is 66MHz */
#define IX_DMA_CODELET_XSCALE_TICK 66

/* Decimal point */
#define IX_DMA_CODELET_DECIMAL_POINT 3

/* 8 bits in a byte */
#define IX_DMA_CODELET_EIGHT_BITS 8

/* Max limit for CallBack time out */
#define IX_DMA_CODELET_MAX_TIME_OUT 10000

/*
 * Variable declarations global to this file only.
 */
static BOOL ixDmaAccCodeletInitialised = FALSE;
static IxOsalThread ixDmaAccCodeletDispatchId;

static UINT8 *ixDmaAccCodeletSrcBlock;
             /**< Pointer to memory allocation for storing DMA source test patterns */
static UINT8 *ixDmaAccCodeletDestBlock;
             /**< Pointer to memory allocation for storing DMA destination test patterns */

/* Check to see whether CallBack is returned */
BOOL ixDmaAccCodeletCallBackReturnFlag = FALSE;

/* Counter used for stop timer */
UINT32 ixDmaAccCodeletLoopCount = 0;

/* Structure to store start and stop time of PERFORMANCE_NUM_LOOP 
   (i.e. 100 runs) */
IxDmaAccCodeletTimeStore ixDmaAccCodeletTimeStore;

/* Used to check the status of the callback */
IX_STATUS ixDmaAccCodeletCallBackStatus;

/* Messages for DmaTransfer Modes */
char *ixDmaAccCodeletMsgTM[] = {
        "IX_DMA_COPY_CLEAR     ",
        "IX_DMA_COPY           ",
        "IX_DMA_COPY_BYTE_SWAP ",
        "IX_DMA_COPY_REVERSE   "
};

/* Messages for DmaAddress Modes */
char *ixDmaAccCodeletMsgAM[] = {
        "INC SRC INC DEST  ",
        "INC SRC FIX DEST  ",
        "FIX SRC INC DEST  "
};

/* Messages for DmaTransfer Widths */
char *ixDmaAccCodeletMsgTW[] = {
        "IX_DMA_32_SRC_32_DST ",
        "IX_DMA_32_SRC_16_DST ",
        "IX_DMA_32_SRC_8_DST ",
        "IX_DMA_16_SRC_32_DST ",
        "IX_DMA_16_SRC_16_DST ",
        "IX_DMA_16_SRC_8_DST ",
        "IX_DMA_8_SRC_32_DST ",
        "IX_DMA_8_SRC_16_DST ",
        "IX_DMA_8_SRC_8_DST ",
        "IX_DMA_8_SRC_BURST_DST ",
        "IX_DMA_16_SRC_BURST_DST ",
        "IX_DMA_32_SRC_BURST_DST ",
        "IX_DMA_BURST_SRC_8_DST ",
        "IX_DMA_BURST_SRC_16_DST ",
        "IX_DMA_BURST_SRC_32_DST ",
        "IX_DMA_BURST_SRC_BURST_DST "
};


/*
 * Static function prototypes.
 */
PRIVATE void ixDmaAccCodeletShow(void);
PRIVATE void ixDmaAccCodeletTestPatternReset(void);
PRIVATE void ixDmaAccCodeletDispatcherPoll(void* argUnused, void** ptrRetObjUnused);
PRIVATE IX_STATUS ixDmaAccCodeletDispatcherStart(BOOL useInterrupt);
PRIVATE IX_STATUS ixDmaAccCodeletNpeInit(IxNpeDlNpeId npeId);
PRIVATE void ixDmaAccCodeletCallback(IX_STATUS status);

PRIVATE IxQMgrDispatcherFuncPtr ixDmaAccCodeletDispatcherFunc ;

PRIVATE void ixDmaAccCodeletReportAverageTime(UINT16 tLength);

PRIVATE void ratioPrintf (int decimalPoint, UINT64 param1, UINT64 param2);

/*
 * Function definition: ixDmaAccCodeletInit()
 * See header file for documentation.
 */
IX_STATUS ixDmaAccCodeletInit(IxNpeDlNpeId npeId)
{
    UINT32 counter;

    /* Block reinitialisation if already done so */
    if(ixDmaAccCodeletInitialised)
    {
        printf("\nDma codelet already initialised");
	    return(IX_FAIL);
    }

    /* get the memory for source area */
    ixDmaAccCodeletSrcBlock = (UINT8*) IX_OSAL_CACHE_DMA_MALLOC(IX_DMA_CODELET_TEST_MAXLENGTH);

    /* get the memory for destination area */
    ixDmaAccCodeletDestBlock = (UINT8*) IX_OSAL_CACHE_DMA_MALLOC(IX_DMA_CODELET_TEST_MAXLENGTH);

    /* Initialise Queue Manager */
    printf("\nInitialising Queue Manager...");
    if (ixQMgrInit() != IX_SUCCESS)
    {
	    printf("\nError initialising queue manager!");
	    return (IX_FAIL);
    }
    /* Start the Queue Manager dispatcher loop :
       Parameter is TRUE for Interrupt mode else poll mode */
#ifdef __linux
    if(ixDmaAccCodeletDispatcherStart(TRUE) != IX_SUCCESS)
#else
    if(ixDmaAccCodeletDispatcherStart(FALSE) != IX_SUCCESS)
#endif
    {
	    printf("\nError starting queue manager dispatch loop!");
	    return (IX_FAIL);
    }
    /* Initialise NPE and download Image */
    printf("\nInitialising NPE %d...", npeId);
    if(ixDmaAccCodeletNpeInit(npeId) != IX_SUCCESS)
    {
	    printf("\nError initialising NPE %d!", npeId);
	    return (IX_FAIL);
    }

    /***********************************************************************
     * System initialisation done. Now initialise Dma Access component.
     ***********************************************************************/
    if (ixDmaAccInit(npeId) != IX_SUCCESS)
    {
	    printf("\nError initialising Dma access driver!");
	    return (IX_FAIL);
    }

    /* initialize the start and stop time array */
    for (counter = 0; counter < PERFORMANCE_LOOP_NUM; counter++)
    {
	ixDmaAccCodeletTimeStore.startTime[counter] = 0;
	ixDmaAccCodeletTimeStore.stopTime[counter] = 0;
    }

    ixDmaAccCodeletInitialised = TRUE;
    return (IX_SUCCESS);
}

/*
 * Function definition: ixDmaAccCodeletDispatcherPoll()
 * See header file for documentation.
 */
PRIVATE void ixDmaAccCodeletDispatcherPoll (void* argUnused, void** ptrRetObjUnused)
{
    while (1)
    {
	    /* Dma NPE A: queues 19 & 20; NPE B: 24 & 26; NPE B: 25 & 27 */
	    (*ixDmaAccCodeletDispatcherFunc) (IX_QMGR_QUELOW_GROUP);
	    /* Yield Execution of Current Thread with 0 Delay */
            ixOsalYield();
    }
}

/*
 * Function definition : ixDmaAccCodeletDispatcherStart()
 * See header file for documentation.
 */
PRIVATE IX_STATUS ixDmaAccCodeletDispatcherStart(BOOL useInterrupt)
{
    IxOsalThreadAttr threadAttr;
    char *pThreadName = "Dispatcher";
    
    ixQMgrDispatcherLoopGet(&ixDmaAccCodeletDispatcherFunc);

    if(useInterrupt)	/* Interrupt mode */
    {
	/*
	 * Hook the QM QLOW dispatcher to the interrupt controller.
	 * IX_QMGR_QUELOW_GROUP refers to Queues 0-31
	 * Dma NPE A: queues 19 & 20; NPE B: 24 & 26; NPE B: 25 & 27
	 */
	if (ixOsalIrqBind(IX_OSAL_IXP400_QM1_IRQ_LVL,
			    (IxOsalVoidFnVoidPtr)ixDmaAccCodeletDispatcherFunc,
			    (void *)IX_QMGR_QUELOW_GROUP) != IX_SUCCESS)
	{
	    printf("\nFailed to bind to QM1 interrupt");
	    return (IX_FAIL);
	}
    }
    else	/* Polled mode */
    {
 	    threadAttr.name = pThreadName;
        threadAttr.stackSize = IX_DMA_CODELET_QMGR_STACK_SIZE;
        threadAttr.priority = IX_DMA_CODELET_QMR_PRIORITY;
 	    
 	    if (ixOsalThreadCreate(&ixDmaAccCodeletDispatchId,
 	    		&threadAttr,
 	    		(IxOsalVoidFnVoidPtr)ixDmaAccCodeletDispatcherPoll,
				NULL
				) != IX_SUCCESS)
	    {
	        ixOsalLog (IX_OSAL_LOG_LVL_ERROR,
	        		   IX_OSAL_LOG_DEV_STDERR,
	        		   "\nError spawning dispatch task",
	        		   0,0,0,0,0,0);
	        return (IX_FAIL);
	    }
	    	    
	   	if (ixOsalThreadStart (&ixDmaAccCodeletDispatchId) != IX_SUCCESS)
	    {
	    	ixOsalLog (IX_OSAL_LOG_LVL_ERROR,
	        		   IX_OSAL_LOG_DEV_STDERR,
	        		   "\nError starting spawing dispatch task",
	        		   0,0,0,0,0,0);
	        		   
	    	return (IX_FAIL);
	    }
    }
    return (IX_SUCCESS);
}

/*
 * Function definition : ixDmaAccCodeletNpeInit()
 * See header file for documentation.
 */
PRIVATE IX_STATUS ixDmaAccCodeletNpeInit(IxNpeDlNpeId npeId)
{
    UINT32 imageId;        /* Storage for single image Id */

    /* Check for invalid npeId value */
    /* Set the image Id for DMA component */
    switch (npeId)
    {
        case IX_NPEDL_NPEID_NPEA :
        imageId = IX_DMA_CODELET_NPE_A_IMAGEID;
        break;
        case IX_NPEDL_NPEID_NPEB :
        imageId = IX_DMA_CODELET_NPE_B_IMAGEID;
        break;
        case IX_NPEDL_NPEID_NPEC :
        imageId = IX_DMA_CODELET_NPE_C_IMAGEID;
        break;
        default:
            /* Invalid NPE ID */
            ixOsalLog (IX_OSAL_LOG_LVL_ALL,
            		   IX_OSAL_LOG_DEV_STDOUT,	
                       "\nDMAAccDemoNpeInit : invalid Npe ID.",
                       0,0,0,0,0,0);
            return (IX_FAIL);
    } /* end of switch(npeId) */

    /* Download NPE code */
    if(ixNpeDlNpeInitAndStart(imageId) != IX_SUCCESS)
    {
        printf("\nNPE download failed");
        return(IX_FAIL);
    }
    return(IX_SUCCESS);
}

/*
 * Function definition : ixDmaAccCodeletShow()
 * See header file for documentation.
 */

void
ixDmaAccCodeletShow(void)
{
    UINT32 i;       /* Counter for memory dump loop */

    /* Invalidate cache for source block before a read to ensure consistency */
    IX_OSAL_CACHE_INVALIDATE(ixDmaAccCodeletSrcBlock,IX_DMA_CODELET_MEMDUMPSIZE);

    /* Show memory dump for source test array */
    for(i = 0; i < IX_DMA_CODELET_MEMDUMPSIZE; i++)
    {
        if ( i%16 == 0 )       /* Show newline and address for every 16 bytes */
        {
            printf ("\n Src Addr %02x : ", (UINT32) &ixDmaAccCodeletSrcBlock[i]);
        }